题目内容
9.A man landed on Mars?You must be joking.That ____ be true.( )A. | may not | B. | can't | C. | would not | D. | might not |
分析 人类到达火星?你一定在开玩笑,这不可能是真的.
解答 答案:B.
当表示确定语气的不可能(理论上的不可能)时,用can't,may not表示可能不;would not表示过去将来或者不愿意做某事,might not表示可能不,语气上比may not更委婉些;故选B,
点评 本题考查的是情态动词的使用.在理解词意的基础上,结合语境选出最符合题意的答案.
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